version 1.7, 2005/06/16 23:08:13
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version 1.8, 2006/08/08 17:47:27
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Line 5 data about the problems currently in the
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Line 5 data about the problems currently in the
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\begin{description} |
\begin{description} |
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\item{\textbf{\#Stdnts}} Total number of students attempting the problem. |
\item{\textbf{\#Stdnts}}: Total number of students attempting the problem. |
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\item{\textbf{Tries}} Total number of attempts to solve the problem. |
\item{\textbf{Tries}}: Total number of attempts to solve the problem. |
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\item{\textbf{Max Tries}} Largest number of attempts to solve the problem by a student. |
\item{\textbf{Max Tries}}: Largest number of attempts to solve the problem by a student. |
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\item{\textbf{Mean Tries}} Average number of attempts. |
\item{\textbf{Mean Tries}}: Average number of attempts. |
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\item{\textbf{S.D. tries}} Standard Deviation of the tries. |
\item{\textbf{S.D. tries}}: Standard Deviation of the tries. |
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\item{\textbf{Skew Tries}} Skewness of the students tries. |
\item{\textbf{Skew Tries}} Skewness of the students' tries. |
\[ \frac{\sqrt{ \sum{(Xi - Mean)^3} / \#Stdnts}}{\sigma^3} \] |
\[ \frac{\sqrt{ \sum{(Xi - Mean)^3} / \#Stdnts}}{\sigma^3} \] |
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\item{\textbf{\#YES}} Number of students who solved the problem correctly. |
\item{\textbf{\#YES}}: Number of students who solved the problem correctly. |
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\item{\textbf{\#yes}} Number of students who solved the problem by override. |
\item{\textbf{\#yes}}: Number of students who solved the problem by override. |
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\item{\textbf{\%Wrng}} Percentage of students who tried to solve the problem but were unable to. |
\item{\textbf{\%Wrng}}: Percentage of students who tried to solve the problem but were unable to. |
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\item{\textbf{DoDiff}} Degree of Difficulty of the problem. |
\item{\textbf{DoDiff}}: Degree of Difficulty of the problem. |
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This statistics gives a measure of how many attempts it took the |
This statistics give a measure of how many attempts it took the |
students to get the problem correct. Those students who did not get |
students to get the problem correct. Those students who did not get |
the problem correct are not counted. A value close to 0 indicates |
the problem correct are not counted. A value close to 0 indicates |
most students who got the problem correct did so on the first attempt. |
most students who got the problem correct did so on the first attempt. |
Line 37 there were no attempts made on the probl
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Line 37 there were no attempts made on the probl
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\[ 1 - \frac{\#YES+\#yes}{Tries} \] |
\[ 1 - \frac{\#YES+\#yes}{Tries} \] |
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\item{\textbf{DoDisc}} Degree of Discrimination of the problem. |
\item{\textbf{DoDisc}}: Degree of Discrimination of the problem. |
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The students are grouped based on their scores on the sequence which |
The students are grouped based on their scores on the sequence which |
contains the homework problem. The percent score of the bottom 25\% of |
contains the homework problem. The percent score of the bottom 25\% of |
Line 48 poor students answered it correctly. Co
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Line 48 poor students answered it correctly. Co
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all of the good students got the problem wrong and the bad students did |
all of the good students got the problem wrong and the bad students did |
well. |
well. |
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\item{\textbf{weight}} The weight of the problem in the course (``points''). |
\item{\textbf{weight}}: The weight of the problem in the course (``points''). |
The value shown is the weight of the problem for the individual computing the |
The value shown is the weight of the problem for the individual computing the |
statistics. Individual student or section variations are not shown. |
statistics. Individual student or section variations are not shown. |
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\end{description} |
\end{description} |
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\textbf{Sequence Statistics}, that is compiled statistics on problems based on |
\textbf{Sequence Statistics}: Compiled statistics on problems based on |
their containing sequence, are also shown. The following data are shown: |
their containing sequence, are also shown. The following data are shown: |
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\begin{description} |
\begin{description} |
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\item{\textbf{\#Items}} The number of problem parts in the sequence. |
\item{\textbf{\#Items}}: The number of problem parts in the sequence. |
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\item{\textbf{Score Mean}, \textbf{Score STD}, \textbf{Score Max} \textbf{Score Min}} |
\item{\textbf{Score Mean}, \textbf{Score STD}, \textbf{Score Max} \textbf{Score Min}} |
The mean, standard deviation, maximum, and minimum of the scores of |
The mean, standard deviation, maximum, and minimum of the scores of |
Line 67 the selected students on the given seque
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Line 67 the selected students on the given seque
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\item{\textbf{Score N}} The number of the selected students who submitted answers to problem parts in the sequence. |
\item{\textbf{Score N}} The number of the selected students who submitted answers to problem parts in the sequence. |
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\item \textbf{Count Mean}, \textbf{Count STD}, \textbf{Count Max}, \textbf{Count Min} |
\item \textbf{Count Mean}, \textbf{Count STD}, \textbf{Count Max}, \textbf{Count Min}: |
The mean, standard deviation, maximum, and minum count of correct |
The mean, standard deviation, maximum, and minimum count of correct |
problem parts of the selected students on the given sequence. |
problem parts of the selected students on the given sequence. |
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\item \textbf{Count N} The number of the selected students who submitted answers to problem parts in the sequence. |
\item \textbf{Count N} The number of the selected students who submitted answers to problem parts in the sequence. |